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9078b67f3c
The 32kHz clock ("LOSC") on sunxi SoCs is provided by the RTC. It is
used, among other things, by the XHCI controller in the H6. To be able
to call clk_get_bulk() on the XHCI controller, some device needs to
provide all referenced clocks.
Since LOSC is a fixed-rate always-on clock, implementation is trivial.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
35 lines
867 B
C
35 lines
867 B
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (C) 2018 Amarula Solutions.
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* Copyright (C) 2020 Samuel Holland <samuel@sholland.org>
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*/
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#include <clk-uclass.h>
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#include <dm.h>
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static int clk_sun6i_rtc_enable(struct clk *clk)
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{
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return 0;
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}
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static const struct clk_ops clk_sun6i_rtc_ops = {
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.enable = clk_sun6i_rtc_enable,
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};
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static const struct udevice_id sun6i_rtc_ids[] = {
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{ .compatible = "allwinner,sun6i-a31-rtc" },
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{ .compatible = "allwinner,sun8i-a23-rtc" },
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{ .compatible = "allwinner,sun8i-h3-rtc" },
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{ .compatible = "allwinner,sun8i-r40-rtc" },
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{ .compatible = "allwinner,sun8i-v3-rtc" },
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{ .compatible = "allwinner,sun50i-h5-rtc" },
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{ .compatible = "allwinner,sun50i-h6-rtc" },
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{ }
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};
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U_BOOT_DRIVER(clk_sun6i_rtc) = {
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.name = "clk_sun6i_rtc",
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.id = UCLASS_CLK,
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.of_match = sun6i_rtc_ids,
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.ops = &clk_sun6i_rtc_ops,
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};
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